package com.principle.facade;

public class TheaterLight {
    private static TheaterLight theaterLight=new TheaterLight();
    public static TheaterLight getInstance(){
        return theaterLight;
    }
    public void on(){
        System.out.println("theaterLight on");
    }
    public void off(){
        System.out.println("theaterLight off");
    }
    public void dim(){
        System.out.println("theaterLight dim...");
    }
    public void bright(){
        System.out.println("theaterLight bright...");
    }
}
